Uncategorized

  1. Physics

    General relativity caught in action around black hole

    X-rays enable scientists to spot a black hole twisting the surrounding fabric of spacetime, just as Einstein’s theory predicts.

    By Andrew Grant
  2. Physics

    Uncovering the science of sand dune ‘booms’

    Mechanical engineer and geophysicist Nathalie Vriend explores noises in the desert that are triggered by sand sliding down dunes.

    By Andrew Grant
  3. Anthropology

    Thigh bone adds to mystery over 14,000-year-old Homo species

    Controversial Chinese leg fossil may point to hybrid humans 14,000 years ago.

    By Bruce Bower
  4. Health & Medicine

    To treat the heart, start with the gut

    Preventing gut bacteria from making certain chemical compounds reduced artery clogging in mice, researchers report.